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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/8272
Title: Effect of Insert Misalignment on a Triangular Corrugated Coaxial Cavity Gyrotron
Authors: Yuvaraj S.
Jose D.A.
Singh S.
Kartikeyan M.V.
Published in: IEEE Transactions on Electron Devices
Abstract: In this paper, the field analysis of a triangular corrugated coaxial cavity with misaligned insert is carried out for a megawatt-class sub-terahertz wave gyrotron. In misalignment analysis, both parallel displacement of the insert axis and tilting of the insert axis with the outer resonator axis are considered. Graff's addition theorem is used for deriving the eigenvalue equation of the coaxial cavity with such a misaligned insert. Mathematical formulations are carried out to include the effect of insert misalignment on the beam coupling coefficient and ohmic wall loading of the outer cavity and insert of the coaxial cavity gyrotron. The effect of structural misalignment of the insert on the operation of 2-MW, 220-GHz coaxial cavity gyrotron is analyzed. It is shown that insert misalignment reduces RF output power as well as increases ohmic wall loading of the insert beyond the prescribed cooling limit. Compared to tilting of the insert, parallel displacement of the insert causes more deterioration in the gyrotron operation. Comparative studies are also performed for a coaxial cavity with rectangular slots on the insert. © 1963-2012 IEEE.
Citation: IEEE Transactions on Electron Devices (2019), 66(9): 4029-4035
URI: https://doi.org/10.1109/TED.2019.2925914
http://repository.iitr.ac.in/handle/123456789/8272
Issue Date: 2019
Publisher: Institute of Electrical and Electronics Engineers Inc.
Keywords: Coaxial cavity gyrotron
Graff's addition Theorem
insert misalignment
surface impedance model
triangular corrugated insert
ISSN: 189383
Author Scopus IDs: 57190343042
57202710145
57206711796
6603631347
Author Affiliations: Yuvaraj, S., Department of Electronics and Communication Engineering, IIT Roorkee, Roorkee, 247667, India
Jose, D.A., Department of Electronics and Communication Engineering, IIT Roorkee, Roorkee, 247667, India
Singh, S., Department of Electronics and Communication Engineering, National Institute of Technology Jalandhar, Jalandhar, 144011, India
Kartikeyan, M.V., Department of Electronics and Communication Engineering, IIT Roorkee, Roorkee, 247667, India
Corresponding Author: Kartikeyan, M.V.; Department of Electronics and Communication Engineering, IIT RoorkeeIndia; email: kartik@ieee.org
Appears in Collections:Journal Publications [ECE]

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